District of Columbia

Patent attorneys in District of Columbia

District of Columbia hosts 2,661 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in District of Columbia. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Finnegan, Nixon Peabody LLP, and Covington & Burling.

Top cities in District of Columbia

All practitioners in District of Columbia

Kevin B Collins

Reg. 51105

Patent attorney

Covington & Burling

Washington, DC · 20005

202-662-5598

Charles T. Collins-Chase

Reg. 78019

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Washington, DC · 20001

202-408-4108

Kendrew Hiram Colton

Reg. 30368

Patent attorney

Fitch, Even, Tabin & Flannery LLP

Washington, DC · 20037-1164

202-419-7000

Gelu Comanescu

Reg. 69016

Patent attorney

Washington, DC · 20016

202-754-2064

Claire K Comfort

Reg. 66133

Patent attorney

U.S. International Trade Commission

Washington, DC · 20436

202-205-2160

Mark Charles Comtois

Reg. 46285

Patent attorney

Duane Morris LLP

Washington, DC · 20004-2166

202-776-7800

Kyle E Conklin

Reg. 59425

Patent attorney

Sterne, Kessler , Goldstein & Fox

Washington, DC · 20005

202-371-2600

Mark J. Consilvio

Reg. 72065

Patent attorney

DENTONS US LLP

Washington, DC · 20006

202-408-3938

Robert Elliott Converse· Jr

Reg. 27432

Patent attorney

Finnegan

Washington, DC · 20001-4413

202-408-4018

James Albert Cooke· III

Reg. 69338

Patent attorney

Nixon Peabody LLP

Washington, DC · 20001-5327

202-585-8326

Remy C. Cooper

Reg. 81942

Patent agent

Quarles & Brady, LLP

Washington, DC · 20006

202-780-2681

Rebekah L Coover

Reg. 68147

Patent attorney

Washington, DC · 20002

703-999-2070

Ruffin B Cordell

Reg. 33487

Patent attorney

Fish & Richardson P.C.

Washington, DC · 20005

202-783-5070

Barbara M Corkery

Reg. 41019

Patent attorney

Naval Sea Systems Command

Washington, DC · 20376

202-781-3520

Thomas Anthony Corrado

Reg. 42439

Patent attorney

Arent Fox LLP

Washington, DC · 20006-5344

202-350-3776

Catherine C. Corser

Reg. 78188

Patent attorney

Finnegan Henderson Farabow Garrett & Dunner, LLP

Washington, DC · 20001

202-408-6052

Shruti Singh Costales

Reg. 56333

Patent attorney

Shruti Law PLLC

Washington, DC · 20006

888-495-9510

Jeffrey L Costellia

Reg. 35483

Patent attorney

Nixon Peabody LLP

Washington, DC · 20001

202-585-8000

Ashlynn Brittney Cottoy

Reg. 902861

Limited recognition

Howard University School of Law

Washington, DC · 20008

347-938-8317

Joel D Couenhoven

Reg. 68848

Patent attorney

Fish & Richardson

Washington, DC · 20024

202-783-5070

John Norris Coulby· III

Reg. 43565

Patent attorney

Quarles and Brady, LLP

Washington, DC · 20006

202-372-9518

Jonathan M Cousin

Reg. 66418

Patent attorney

Cooley, LLP

Washington, DC · 20004-2400

202-842-7800

Caitlin T Coverstone

Reg. 81980

Patent agent

Finnegan

Washington, DC · 20001

202-408-4129

John M Covert

Reg. 38759

Patent attorney

Sterne, Kessler, Goldstein & Fox, P.L.L.C.

Washington, DC · 20005

202-371-2600

Alexander R. Covington

Reg. 74533

Patent attorney

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Washington, DC · 20005

202-772-8749

Lisa M Coward

Reg. 44091

Patent agent

Milbank,Tweed, Hadley & McCloy LLP

Washington, DC · 20006

202-835-7500

Seth Cowell

Reg. 42443

Patent attorney

Wilson Sonsini Goodrich & Rosati

Washington, DC · 20006

202-791-8015

Charles T. Cox· Jr.

Reg. 72880

Patent attorney

WilmerHale LLP

Washington, DC · 20037

202-663-6764

Ryan P Cox

Reg. 71444

Patent attorney

Squire Patton Boggs (US) LLP

Washington, DC · 20037

202-457-7529

Patrick Joseph Coyne

Reg. 31821

Patent attorney

Patrick J . Coyne, Coyne Consulting PLLC

Washington, DC · 20003-1347

202-256-7792

Common questions

Do I need a patent attorney based in District of Columbia?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a District of Columbia-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in District of Columbia?

2,661 active USPTO-registered patent practitioners list a District of Columbia office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.